Patents by Inventor Bo Kyung Choi

Bo Kyung Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130228760
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are provided. The OLED display device includes a substrate having a thin film transistor region and a capacitor region, a buffer layer disposed on the substrate, a gate insulating layer disposed on the substrate, a lower capacitor electrode disposed on the gate insulating layer in the capacitor region, an interlayer insulating layer disposed on the substrate, and an upper capacitor electrode disposed on the interlayer insulating layer and facing the lower capacitor electrode, wherein regions of each of the buffer layer, the gate insulating layer, the interlayer insulating layer, the lower capacitor electrode, and the upper capacitor electrode have surfaces in which protrusions having the same shape as grain boundaries of the semiconductor layer are formed. The resultant capacitor has an increased surface area, and therefore, an increased capacitance.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 5, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byoung-Keon PARK, Tae-Hoon YANG, Jin-Wook SEO, Soo-Beom JO, Dong-Hyun LEE, Kil-Won LEE, Maxim LISACHENKO, Yun-Mo CHUNG, Bo-Kyung CHOI, Jong-Ryuk PARK, Ki-Yong LEE
  • Patent number: 8513671
    Abstract: A display device with the substrate divided into three areas. A semiconductor layer is formed in the first second areas and includes a channel area and source/drain areas; a gate insulating layer formed on the semiconductor layer in an area corresponding to the channel area; and a gate electrode formed on the gate insulating layer. The source/drain electrodes contact the source/drain areas, respectively; a pixel electrode is formed in the same layer but in a third area; an interlayer insulating layer is formed on a whole surface of the substrate including the formed structures; and a gate line is formed on the interlayer insulating layer and is electrically connected to a gate electrode of the first area through a via contact hole of the interlayer insulating layer.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Chul Shin, Kyu-Sik Cho, Won-Kyu Lee, Tae-Hoon Yang, Byoung-Kwon Choo, Yun-Gyu Lee, Yong-Hwan Park, Sang-Ho Moon, Bo-Kyung Choi
  • Patent number: 8502206
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are disclosed.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 6, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Kyu Lee, Kyu-Sik Cho, Tae-Hoon Yang, Byoung-Kwon Choo, Sang-Ho Moon, Bo-Kyung Choi, Yong-Hwan Park, Joon-Hoo Choi, Min-Chul Shin, Yun-Gyu Lee
  • Patent number: 8486195
    Abstract: An atomic layer deposition apparatus includes a chamber, a vacuum pump to control a pressure in the chamber, a gas supply unit to supply a reaction gas into the chamber, a substrate holder disposed between the vacuum pump and the gas supply unit and having a heater, a mask assembly disposed between the substrate holder and the gas supply unit and having a cooling path to move coolant, and a coolant source to supply the coolant into the cooling path. The mask assembly is positioned a first distance from a substrate, and coolant is supplied into the cooling path of the mask assembly. The substrate is heated using the heater of the substrate holder, a pressure of the chamber is controlled using the vacuum pump, and reaction gasses are sequentially supplied through the gas supply unit.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: July 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heung-Yeol Na, Ki-Yong Lee, Min-Jae Jeong, Jong-Won Hong, Yun-Mo Chung, Eu-Gene Kang, Seok-Rak Chang, Jin-Wook Seo, Ji-Su Ahn, Tae-Hoon Yang, Young-Dae Kim, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Jae-Wan Jung, Jong-Ryuk Park, Bo-Kyung Choi, Sang-Hyun Yun
  • Patent number: 8481998
    Abstract: A display device and a manufacturing method thereof are provided. The display device includes a substrate, a semiconductor layer formed on the substrate, an organic insulating layer formed on the semiconductor layer, a plurality of conductive wires formed on the organic insulating layer. The organic insulating layer has an open groove that is formed between the conductive wires.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 9, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Sik Cho, Joon-Hoo Choi, Bo-Kyung Choi, Sang-Ho Moon
  • Publication number: 20130164872
    Abstract: An organic light emitting diode display device and a method of manufacturing thereof, the device including a substrate, the substrate including a pixel part and a circuit part; a first semiconductor layer and a second semiconductor layer on the pixel part of the substrate; a gate insulating layer on an entire surface of the substrate; gate electrodes on the gate insulating layer, the gate electrodes corresponding to the first semiconductor layer and the second semiconductor layer, respectively; source/drain electrodes insulated from the gate electrodes, the source/drain electrodes being connected to the first and second semiconductor layers, respectively; a first electrode connected to the source/drain electrodes of the first semiconductor layer; an organic layer on the first electrode; a second layer on the organic layer; and a metal catalyst layer under the first semiconductor layer.
    Type: Application
    Filed: February 20, 2013
    Publication date: June 27, 2013
    Inventors: Yong-Hwan PARK, Kyu-Sik CHO, Sang-Ho MOON, Byoung-Kwon CHOO, Min-Chul SHIN, Tae-Hoon YANG, Bo-Kyung CHOI, Won-Kyu LEE, Yun-Gyu LEE, Joon-Hoo CHOI
  • Patent number: 8409887
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are provided. The OLED display device includes a substrate having a thin film transistor region and a capacitor region, a buffer layer disposed on the substrate, a gate insulating layer disposed on the substrate, a lower capacitor electrode disposed on the gate insulating layer in the capacitor region, an interlayer insulating layer disposed on the substrate, and an upper capacitor electrode disposed on the interlayer insulating layer and facing the lower capacitor electrode, wherein regions of each of the buffer layer, the gate insulating layer, the interlayer insulating layer, the lower capacitor electrode, and the upper capacitor electrode have surfaces in which protrusions having the same shape as grain boundaries of the semiconductor layer are formed. The resultant capacitor has an increased surface area, and therefore, an increased capacitance.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Keon Park, Tae-Hoon Yang, Jin-Wook Seo, Soo-Beom Jo, Dong-Hyun Lee, Kil-Won Lee, Maxim Lisachenko, Yun-Mo Chung, Bo-Kyung Choi, Jong-Ryuk Park, Ki-Yong Lee
  • Patent number: 8389984
    Abstract: An organic light emitting diode display device and a method of manufacturing thereof, the device including a substrate, the substrate including a pixel part and a circuit part; a first semiconductor layer and a second semiconductor layer on the pixel part of the substrate; a gate insulating layer on an entire surface of the substrate; gate electrodes on the gate insulating layer, the gate electrodes corresponding to the first semiconductor layer and the second semiconductor layer, respectively; source/drain electrodes insulated from the gate electrodes, the source/drain electrodes being connected to the first and second semiconductor layers, respectively; a first electrode connected to the source/drain electrodes of the first semiconductor layer; an organic layer on the first electrode; a second layer on the organic layer; and a metal catalyst layer under the first semiconductor layer.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: March 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Park, Kyu-Sik Cho, Sang-Ho Moon, Byoung-Kwon Choo, Min-Chul Shin, Tae-Hoon Yang, Bo-Kyung Choi, Won-Kyu Lee, Yun-Gyu Lee, Joon-Hoo Choi
  • Patent number: 8373097
    Abstract: An apparatus for thermally processing a plurality of substrates including a process chamber into which a boat having a plurality of substrates stacked thereon is loaded, and a heater chamber separate from the process chamber and having a plurality of heaters to apply heat to the process chamber. Here, the heaters are installed to correspond to all sides of the plurality of substrates. Therefore, it is possible to minimize a temperature distribution in the process chamber and uniformly supply heat to the entire region of the plurality of substrates.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heung-Yeol Na, Min-Jae Jeong, Jong-Won Hong, Eu-Gene Kang, Seok-Rak Chang, Ki-Yong Lee, Jin-Wook Seo, Tae-Hoon Yang, Yun-Mo Chung, Byung-Soo So, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Won-Bong Baek, Jong-Ryuk Park, Bo-Kyung Choi, Ivan Maidanchuk, Jae-Wan Jung
  • Publication number: 20120104393
    Abstract: An OLED display includes a first polysilicon layer pattern on a substrate having a first gate electrode, a second gate electrode, and a first capacitor electrode, a gate insulating layer pattern, a second polysilicon layer pattern including a first active layer, a second active layer, and a capacitor polycrystalline dummy layer, a third amorphous silicon layer pattern including first source and drain resistant contact layers on a predetermined region of the first active layer, second source and drain resistant contact layers on a predetermined region of the second active layer, and a capacitor amorphous dummy layer on the capacitor polycrystalline dummy layer, and a data metal layer pattern including first source/drain electrodes, second source/drain electrodes, and a second capacitor electrode.
    Type: Application
    Filed: September 13, 2011
    Publication date: May 3, 2012
    Inventors: Kyu-Sik Cho, Joon-Hoo Choi, Byoung-Kwon Choo, Min-Chul Shin, Tae-Hoon Yang, Won-Kyu Lee, Yun-Gyu Lee, Bo-Kyung Choi, Yong-Hwan Park, Sang-Ho Moon
  • Publication number: 20120097967
    Abstract: An organic light-emitting display device includes a buffer layer on a substrate that has a plurality of insulating layers having different refractive indexes, and at least one of the insulating layers have different thicknesses on the same level. The device further includes an active layer of a thin film transistor in a thick area of the buffer layer, a pixel electrode in a thin area of the buffer layer, a gate electrode of the thin film transistor on the active layer and source and drain electrodes of the thin film transistor connected to the active layer, and a gate insulating layer between the gate electrode and the source and drain electrodes. The device also includes an emission layer on the pixel electrode, an opposite electrode facing the pixel electrode, and the emission layer is between the opposite electrode and the pixel electrode.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 26, 2012
    Inventors: Bo-Kyung Choi, Kyu-Sik Cho, Sang-Ho Moon, Joon-Hoo Choi, Chung-Gi You, Sun Park, Jong-Hyun Park, Yul-Kyu Lee
  • Publication number: 20120001156
    Abstract: An organic light emitting diode display is disclosed.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Kyu-Sik CHO, Won-Kyu LEE, Tae-Hoon YANG, Byoung-Kwon CHOO, Sang-Ho MOON, Bo-Kyung CHOI, Yong-Hwan PARK, Joon-Hoo CHOI, Min-Chul SHIN, Yun-Gyu LEE
  • Publication number: 20120000425
    Abstract: A substrate processing apparatus that simultaneously forms thin films on a plurality of substrates and performs heat treatment includes: a plurality of substrate holders, each including a substrate support that supports a substrate and a first gas pipe having one or a plurality of injection holes; a boat where the plurality of substrate holders are stacked and including a second gas pipe connected with the first gas pipe of each of the substrate holders; a process chamber providing a space in which the substrates stacked in the boat are processed; a conveying unit that carries the boat into/out of the process chamber; a first heating unit disposed outside the process chamber; and a gas supply unit including a third gas pipe connected with the second gas pipe and supplying a heated or cooled gas into the second gas pipe.
    Type: Application
    Filed: January 6, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung-Keon Park, Ki-Yong Lee, Jin-Wook Seo, Min-Jae Jeong, Jong-Won Hong, Heung-Yeol Na, Tae-Hoon Yang, Yun-Mo Chung, Eu-Gene Kang, Seok-Rak Chang, Dong-Hyun Lee, Kil-Won Lee, Jong-Ryuk Park, Bo-Kyung Choi, Won-Bong Baek, Ivan Maidanchuk, Byung-Soo So, Jae-Wan Jung
  • Publication number: 20120000986
    Abstract: A canister for a deposition apparatus and a deposition apparatus using the same, and more particularly, a canister for a deposition apparatus that can provide a uniform amount of source material contained in a reaction gas supplied into a deposition chamber and improve safety in the supply of the source material, and a deposition apparatus using the canister. The deposition apparatus includes a deposition chamber; a canister supplying a reaction gas into the deposition chamber; and a carrier gas supplier for supplying a carrier gas into the canister, in which the canister includes a main body, a heating unit heating the main body and a temperature measuring unit disposed under the main body.
    Type: Application
    Filed: January 19, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd
    Inventors: Min-Jae JEONG, Ki-Yong Lee, Jong-Won Hong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang, Jin-Wook Seo, Tae-Hoon Yang, Yun-Mo Chung, Byung-Soo Soo, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Won-Bong Baek, Jong-Ryuk Park, Bo-Kyung Choi, Ivan Maidanchuk, Jae-Wan Jung
  • Publication number: 20110303922
    Abstract: A display device and a manufacturing method thereof are provided. The display device includes a substrate, a semiconductor layer formed on the substrate, an organic insulating layer formed on the semiconductor layer, a plurality of conductive wires formed on the organic insulating layer. The organic insulating layer has an open groove that is formed between the conductive wires.
    Type: Application
    Filed: April 29, 2011
    Publication date: December 15, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Kyu-Sik Cho, Joon-Hoo Choi, Bo-Kyung Choi, Sang-Ho Moon
  • Publication number: 20110297949
    Abstract: An organic light emitting display and method of fabricating thereof, the display including a substrate including a first thin film transistor region and a second thin film transistor region; a buffer layer on the substrate; a first and a second semiconductor layer on the buffer layer; a gate insulating layer on the substrate; gate electrodes on the gate insulating layer and corresponding to the first semiconductor layer and the second semiconductor layer, respectively; source/drain electrodes insulated from the gate electrode and being connected to the first semiconductor layer and the second semiconductor layer, respectively; an insulating layer on the substrate; a first electrode connected to the source/drain electrode electrically connected to the first semiconductor layer; an organic layer on the first electrode; and a second electrode on the organic layer, wherein portions of the buffer layer corresponding to a source/drain region of the first semiconductor layer include a metal catalyst.
    Type: Application
    Filed: March 22, 2011
    Publication date: December 8, 2011
    Inventors: Won-Kyu Lee, Tae-Hoon Yang, Bo-Kyung Choi, Byoung-Kwon Choo, Kyu-Sik Cho, Yong-Hwan Park, Sang-Ho Moon, Min-Chul Shin, Yun-Gyu Lee, Joon-Hoo Choi
  • Publication number: 20110291122
    Abstract: A display device with the substrate divided into three areas. A semiconductor layer is formed in the first second areas and includes a channel area and source/drain areas; a gate insulating layer formed on the semiconductor layer in an area corresponding to the channel area; and a gate electrode formed on the gate insulating layer. The source/drain electrodes contact the source/drain areas, respectively; a pixel electrode is formed in the same layer but in a third area; an interlayer insulating layer is formed on a whole surface of the substrate including the formed structures; and a gate line is formed on the interlayer insulating layer and is electrically connected to a gate electrode of the first area through a via contact hole of the interlayer insulating layer.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Min-Chul SHIN, Kyu-Sik CHO, Won-Kyu LEE, Tae-Hoon YANG, Byoung-Kwon CHOO, Yun-Gyu LEE, Yong-Hwan PARK, Sang-Ho MOON, Bo-Kyung CHOI
  • Patent number: 8048783
    Abstract: A method of forming a polycrystalline silicon layer and an atomic layer deposition apparatus used for the same. The method includes forming an amorphous silicon layer on a substrate, exposing the substrate having the amorphous silicon layer to a hydrophilic or hydrophobic gas atmosphere, placing a mask having at least one open and at least one closed portion over the amorphous silicon layer, irradiating UV light toward the amorphous silicon layer and the mask using a UV lamp, depositing a crystallization-inducing metal on the amorphous silicon layer, and annealing the substrate to crystallize the amorphous silicon layer into a polycrystalline silicon layer. This method and apparatus provide for controlling the seed position and grain size in the formation of a polycrystalline silicon layer.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 1, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mo Chung, Ki-Yong Lee, Min-Jae Jeong, Jin-Wook Seo, Jong-Won Hong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang, Tae-Hoon Yang, Ji-Su Ahn, Young-Dae Kim, Byoung-Keon Park, Kil-Won Lee, Dong-Hyun Lee, Sang-Yon Yoon, Jong-Ryuk Park, Bo-Kyung Choi, Maxim Lisachenko
  • Publication number: 20110263107
    Abstract: A method of forming a polycrystalline silicon layer and an atomic layer deposition apparatus used for the same. The method includes forming an amorphous silicon layer on a substrate, exposing the substrate having the amorphous silicon layer to a hydrophilic or hydrophobic gas atmosphere, placing a mask having at least one open and at least one closed portion over the amorphous silicon layer, irradiating UV light toward the amorphous silicon layer and the mask using a UV lamp, depositing a crystallization-inducing metal on the amorphous silicon layer, and annealing the substrate to crystallize the amorphous silicon layer into a polycrystalline silicon layer. This method and apparatus provide for controlling the seed position and grain size in the formation of a polycrystalline silicon layer.
    Type: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mo CHUNG, Ki-Yong LEE, Min-Jae JEONG, Jin-Wook SEO, Jong-Won HONG, Heung-Yeol NA, Eu-Gene KANG, Seok-Rak CHANG, Tae-Hoon YANG, Ji-Su AHN, Young-Dae KIM, Byoung-Keon PARK, Kil-Won LEE, Dong-Hyun LEE, Sang-Yon YOON, Jong-Ryuk PARK, Bo-Kyung CHOI, Maxim LISACHENKO
  • Publication number: 20110253987
    Abstract: A method of crystallizing a silicon layer. An amorphous silicon layer is formed on a buffer layer on a substrate. A catalyst metal layer is formed on the amorphous silicon layer to have a density of from about 1011 to about 1015 atom/cm2. A crystalline seed having a pyramid shape is formed on an interface between the amorphous silicon layer and the buffer layer as a catalyst metal of the catalyst metal layer diffuses into the amorphous silicon layer. The amorphous silicon layer is thermal-treated so that a polysilicon layer is formed as a silicon crystal grows by the crystallization seed.
    Type: Application
    Filed: January 24, 2011
    Publication date: October 20, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mo CHUNG, Ki-Yong Lee, Jin-Wook Seo, Kil-Won Lee, Bo-Kyung Choi